ATP is an unstable molecule in unbuffered water, in which it hydrolyses to ADP and phosphate. This is because the strength of the bonds between the phosphate groups in ATP is less than the strength of the hydrogen bonds (hydration bonds), between its products (ADP + phosphate), and water. Thus, if ATP and ADP are in chemical equilibrium in water, almost all of the ATP will eventually be converted to ADP.
attribuer. 1  to grant, to award. 2  to give credit to, to recognize. 3  to attribute to, to ascribe to. ( takes a reflexive pronoun, s'attribuer) to take the credit for, to give oneself priority over others.
The attributable fraction is the fraction of event rate or risk in the exposed population that is attributable to exposure: Denote the rate or risk ratio by . The attributable fraction is given by. The confidence intervals for the attributable fraction can be computed using the confidence intervals for the rate or risk ratio .